Bronzing-machine



(No Mdem' l 2 Sheets-Sheet 1.

W.` P. H. GLIDDEN. BRONZING MAGINB. No. 413,602.` y Patented oct. 22,1889.

2 SheQts-Sheet 2.

BRONZHIG MACHINE.

10.413.602l Patented 001;. 22. 1889.

WHA/5535s.-

'. UNITED 'STATES PATENT "OFFICE,"

WILLIAM P. n. GLIDDEN, on CLEVELAND, omo.

BRoNzlNG-MAcl-HNE.

SPECIFICATION forming part of Letters` Patent No. 413,602, dated October 22, 1889.

Application filed .Tune 8, 1889. Serial No. 313,632. Y (No model.) I

vvwork to be bronzed at each stroke, and permits a fresh quantity of the bronze-powder to To aZZ when?. it may concern.- `Be it known that I, WILLIAM P. H. GLID- DEN, of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Bronzing-Machines, of which the following is a full, clear, and exact description, such as Will enable others skilled in the art to which it pertains to makeand use the same.

Heretoforebronzing-machines have been constructed in which the brnzing rubbers had a rotary or simply reciprocating movement; but in neither of these ways can so perfect a result be obtained as in bronzing by hand, and the work is liable to be streaked,

lespecially when rotary rubbers are employed.

' The object of my invention is to secure the perfection of surface obtained by hand-work, while operating with greater speed, and to bronze a continuous web or separate sheets, as may be required, and to combine the sizing and bronzing in a single machine.

In the drawings, Figure l represents a plan Y view of a bronzing-machine embodying my invention. Fig. 2 is a longitudinal sectional elevation of the same.' Fig. 3 is an elevation of part of the rubber holder, and Fig. 4 a transverse section ofthe-same.v

A represents the frame of the machine.

B is the bed supported-by the frame.

C is an endless apron or beltdriven by the roller D, whose axle ol4 carries' the fast and loose pulleys E and the gearsf c and belt-pulleys f f F is a gear meshing with gear'e and carrying a crank g', or a cam, on its axle, which, by means of connecting-rods g2, is connected to a pin h, extending from the rubber carrier Gr. Rubbers G2, covered on their face with felt, fur, plush, or other similar soft material, are secured to the carrier Gr by screws 7c., and have springs k2 to regulate their bearing on the work. The rubbers are made With diagonal ends and lap past each other, as shown in Fig. 1, to prevent streaks inthe Work. yOne or more of the rubbers, to suit the size of the Work'to be done, maybe used, or for large work a single rubber extending entirely across the bed may be used with advantage. The arm or pin htravels in a slot Z, which is curved or inclined upward at one end, and thus causes the rubber to lift above the paper or be carried under the rubber before it again descendsupon the paper.

The bronze-powder is placed in a box K, extending across the machine and having its bottom formed'of iine Wire-gauze or bolting cloth. The box K is preferably made in compartments, lso that one or more may be used, or different colors placed in the various comlpartments, and is pivoted or suspended so as to oscillate, and is provided with an arm m, adapted to be struck by the teeth of a rag- Wheel m2, thus jarring the box and sifting outV the powder. An opening in the bed immediately 'beyond the roller D is covered with wire-gauze, and a brush L is arranged over this gauze covered opening in contact with the gauze. When separate sheets are fed into the machine, there is necessarily a space between the successive sheets, and the loose bronze-powder swept from the sheets by the revolution of the brush L falls through the gauze in the spacebetween the sheets and is received in a pan J, placed beneath the gauze, from which it maybe collected and usedagain. In bronzing a continuous web the brush L is placed diagonally across this bed of the ma-8o chine and sweeps the loose bronze powder olf the side of the web, when it falls through the gauze, as before. If preferred, the brush L may be placed diagonally when bronzing separate sheets, but for such use I prefer to arrange it transversely, as shown.

A brush rotating in a horizontal plane may be used without departing from my invention, but I prefer a vertically-rotating brush.

A brush M below the bed cleans off all powder adhering to the apron C, Which is received in a pan J 2.

Guide-ingers n are arranged at suitable intervals to keep the sheets in position, and rolls o o are located where needed to cause the sheets to travel with the apron C; As the brush L to be most efficient must lrotate in a direction the reverse of apron C, the paper after passing under the brush Would, as soon as its rear end had passed from under the feedroll, be stopped and held by the brush L, and would not only not feed out, but there would be a great liability to streak and spoil the work. To obviate this, I arrange a sec- ICO i ondary apron C', running on rollers D2 D3, with a feed-roller O placed above the apron to cause the Work to move with it, and this secondary apron and feed-roller engage the work as it issues from under the brush L and before it has entirely passed from the apron C and pull it along against the resistance of the brush after it has passed from apron C,

' and thus insure the continuous motion and discharge of the sheet, and may be arranged to pass the work to any convenient discharge.

If a continuous web, like wall-paper, is .to be bronzed, it is passed to any suitable reel in the usual way.

f2-f3 f4 fsf? fs fn fio fu me be1t puueys for driving the various rollers, brushes, die. Their operation is obvious, suitable belts being used to connect them, as shown in the drawings.

I have found it expedient to so proportion the gears e and F that the bronzing pad or rubber G2 is caused to make about iive or six passes over the paper, and in such case the throw of the crank g may be short, as the repeated rubbing of the surface will be equally eicient and the speed of apron C may be greater. To keep the apron C tightly stretched, a loose roller Q in slotted bearings is placed above the under side of the apron. If preferred, however, the bearing of the roller D may be made laterally adjustable.

In the operation of the machine for bronzing paper the sheets,printed in size, as usual, may be taken from the printing-press and fed into the bronzing-machine; or the sheets may be delivered from the press by a fly di rect-ly upon the apron of the bronzing-machine, in which case this machine would form an auxiliary attachment to a printingpress.

. P representsv a printingcylinder with the usual inking-rolls p p and an ink-fountain R, for supplying size. l

S is a rcel for holding a web of paper. By the rapid motion to and fro of the bronzing-rubber, lifting at each stroke, a close imitation is obtained of the movements of the yconstruction of the various parts may be varied toa considerable extent without departingfrom the spirit of myinvention, which is, broadly stated, the conveying of the sized sheetsor' web under an automatic bronzepowder sifter, and thence under a rapidlymoving rubber lifting at each stroke to receive fresh powder, in imitation of the movement of the hand in hand-bronzing, and in providing' means for sizing, bronzing, and

cleaning the sheets or web in a continuous operation in a single machine.

Although the machine is designed to be run by power, it isobvious that it can be operated by hand by substituting a crank for the pulleys E. I prefer, also, in using the machine, to provide a removable cover of sheet metal or other light material, which may be placed on the machine to prevent the blowing about o the bronze-powder.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a bronzing-machine, a bronzing-rub ber having a combined reciprocating and 0svpurposes set forth.

a reciprocating movement and lifting at each stroke, substantially as described.

3. In a bronzing-machine, the combination of a rubber having a combined reciprocating and oscillating movement, an endless apron for feeding the work, and a sifting-box for applying the bronze-powder, substantially as described.

4. The combination, in a bronzing-machine, of a traveling apron for carrying the work, a siftingbox for applying the bronzepowder, a bronzing arubber having a combined reciprocating and oscillating movement, whereby it is caused to lift from the work at each stroke, and a brush for cleaning olf the loose powder from the work, substantially scribed.

kof an'endless apron for feeding the Work, a sifting-box for applying the bronze-powder, a bronzing-rubber having a reciprocating movement and lifting from the work at cach stroke, a brush for cleaning the work, and a brush for cleaning said apron, substantially as described. v

6. In a bronzingmachine, the combination of an endless apron, feed-rollers, and guideiingers for feeding the work and retaining it in position, asifting-box for applying bronze# powder, a reciprocating rubber for bronzing the work, a brush for cleaning the work, and Aa secondary apron and feed-rollers for forcing the work to feed past the cleaning-brush and as described.v

7. The bronzingrubber made in sections with diagonal overlapping ends, cach section removably secured in the carrier to permit the removal of one or more sections, substan tially as described.

f WILLIAM; r. 1I. GLIDDEN.

XVit-nesses:

WM. G. TAYLOR, LoUIs PRENTIss. I

cillating motion, substantially as and for the 2. In a bronzing-machine, the rubber having.

as deA 5. In a bronzing-machine, the combination ldischarging the finished Work,substantially IOO IIO 

